Brennan Manning advocates calling God "mother" as an endorser of "Christian feminism." I used to enjoy reading his book, Abba’s Child, until I found out that he proliferates the the confusing oxymoron of "evangelical feminism" and the heresy of calling God "mother". I researched further to find that Brennan is a leader in the monastic movement of contemplative prayer, making him a forerunner in pseudo-Catholic and pop-culture Christianity.
Read Brennan Manning’s "Abba" is also a "Mamma" on the LTW blog here.